(HealthDay)—People who follow a heart-healthy diet won't see much change in their eating habits if, as reported, this year's U.S. Dietary Guidelines report rescinds previous warnings against eating certain ...

National dietary advice on fat consumption issued to millions of US and UK citizens in 1977 and 1983, to cut coronary heart disease incidence, lacked any solid trial evidence to back it up, and "should not have been introduced," ...